<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<script type="text/javascript" src="js/jquery-1.8.3.js" ></script>
	<script>
		$(function(){
//			$("li:even").css("background","red");
//			$("li:odd").css("background","blue");
//			$("li:lt(2)").css("background","coral");
			
		})
	</script>
	<body>
		<ul>
			<li>A</li>
			<li>B</li>
			<li>C</li>
			<li>D</li>
			<li>E</li>
			<li>F</li>
			<li>G</li>
		</ul>
		<input type="checkbox" name="apple" />
		<input type="checkbox" name="flower" checked="checked" />
		<input type="text" /><span style="display: none;">请在这里输入姓名</span><br>
		<input type="text" /><span style="display: none;">请在这里输入密码</span>
	</body>
</html>
